Raw material mixing device for shielding wave-absorbing material

Abstract

The utility model relates to the technical field of raw material mixing, and solves the problems that the viscosity of a precursor solution is gradually increased in a heating and stirring process, and the stirring uniformity of a conventional stirring device is poor. The raw material mixing device for the shielding wave-absorbing material comprises a mixing barrel, a feeding port and a discharging port, the feeding port and the discharging port are formed in the mixing barrel, a mixing shaft is installed in the mixing barrel, and the mixing shaft is sleeved with a plurality of mixing structures synchronously rotating along with the mixing shaft; the mixing structure comprises a follow-up sleeve connected to the mixing shaft in a sleeving mode, a stirring assembly is annularly installed on the follow-up sleeve, the stirring assembly is provided with a stirring rod and a first-order stirring sleeve connected to the stirring rod in a sleeving mode and in threaded connection with the stirring rod, and the stirring rod in the first-order stirring sleeve is connected with a second-order stirring sleeve in a sleeving mode; the first-order stirring sleeve comprises a lining connected to the stirring rod in a sleeving mode and a sleeve connected with the lining and extending towards the end of the stirring rod, stirring plates are installed on the sleeve in a bilateral symmetry mode, and a plurality of overflow holes are formed in the stirring plates.

Description

TECHNICAL FIELD

[0001] The utility model relates to raw material mixing technical field, concretely is raw material mixing device for shielding wave absorbing material. BACKGROUND

[0002] Part of prior art adopts solution gel method to prepare CoFe2O4 nano particle, the precursor solution is heated and stirred in stirring device continuously, evaporates the solvent and obtains the precursor sol, after drying in the air, heats in the pipe type furnace, after heat preservation, obtains after natural cooling under N2 atmosphere. Because the viscosity of precursor solution increases gradually in the heating and stirring process, the stirring uniformity of conventional stirring device is poor, and the stirring effect is poor, which affects the product quality. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides a raw material mixing device for shielding wave absorbing material, which solves the problem of poor stirring uniformity of conventional stirring device due to gradual increase of viscosity of precursor solution in the heating and stirring process.

[0004] To achieve the above object, the utility model provides the following technical scheme: a raw material mixing device for shielding wave absorbing material, which comprises a mixing cylinder and a feed inlet and a discharge outlet formed on the mixing cylinder, a mixing shaft is installed in the mixing cylinder, and a plurality of mixing structures are sleeved on the mixing shaft and rotate synchronously with the mixing shaft.

[0005] The mixing structure comprises a follow-up sleeve sleeved on the mixing shaft, a stirring assembly is installed in a ring shape on the follow-up sleeve, the stirring assembly is provided with a stirring rod and a first-order stirring sleeve sleeved on the stirring rod and connected in a threaded manner, and a second-order stirring sleeve is sleeved on the stirring rod in the first-order stirring sleeve.

[0006] The first-order stirring sleeve comprises a bushing sleeved on the stirring rod and a sleeve extending to the end of the stirring rod from the bushing, and stirring plates are installed in a left-right symmetrical manner on the sleeve.

[0007] In one embodiment, an inner lining ring with a diameter larger than that of the stirring rod is installed inside the sleeve, and the inner lining ring acts on the second-order stirring sleeve to establish or release the action of the second-order stirring sleeve on the material;

[0008] The second-order stirring sleeve comprises a second-order sleeve sleeved on the stirring rod, the outer diameter of the second-order sleeve is smaller than the inner diameter of the inner lining ring, a second-order mixing rod is installed in a ring shape on the second-order sleeve, the second-order mixing rod is in a cylindrical shape and is provided with a plurality of overflow grooves and a flow hole for material flow on the second-order mixing rod.

[0009] In one embodiment, a slot opening adapted to the overflow groove is formed on the inner lining ring, and a protrusion is installed on the second-order mixing rod selected from the overflow groove, and the protrusion is connected to the inner lining ring through a shaft.

[0010] The second-order mixing rod is rotatable on the second-order sleeve through a rotating shaft at the joint position of the second-order sleeve structure, and the cutoff position of the overflow groove is located at the joint position of the second-order mixing rod and the rotating shaft.

[0011] In one embodiment, the stirring plate is in a cross shape, the horizontal structure of the stirring plate is chamfered at one end away from the sleeve, and the cutting end is inclined on the inclined top surface of the vertical structure and away from the sleeve.

[0012] In one embodiment, the extension length of the stirring plate in the front-rear direction is equivalent to the length of the sleeve, and the length of the horizontal structure of the stirring plate is equivalent to the length of the vertical structure.

[0013] In one embodiment, a threaded groove is formed on the inner wall of the bushing and has a diameter smaller than that of the sleeve.

[0014] Compared with the prior art, the raw material mixing device for shielding wave-absorbing material has the following beneficial effects:

[0015] In the technical scheme, the first-order stirring sleeve arranged on the stirring rod is used to adapt to the state of the precursor solution in the gradual heating process, the first-order stirring sleeve stirs the flow of the precursor solution, expands the stirring area, and increases the mixing degree of the solution, and after the viscosity of the precursor solution gradually increases, the area of the first-order stirring sleeve is changed to expose the second-order stirring sleeve, the second-order stirring sleeve is used to stir the precursor solution, and the stirring efficiency is increased.

[0016] In the process of changing the position of the first-order stirring sleeve, the contact area of the precursor solution with gradually increasing viscosity is gradually reduced, the mixing radius is reduced, the resistance of the first-order stirring sleeve to the precursor solution with gradually increasing viscosity is reduced, and the overall mixing efficiency of the scheme is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0018] Figure 1 It is a half-section internal structure schematic view of the mixing cylinder of the utility model;

[0019] Figure 2 It is a mixing structure schematic view of the utility model;

[0020] Figure 3 It is the first order stirring sleeve and second order stirring sleeve structural schematic diagram of the utility model;

[0021] Figure 4 It is the lining ring structural schematic diagram of the utility model;

[0022] Figure 5 It is the stirring plate structural schematic diagram of the utility model;

[0023] Figure 6 It is the second order mixing rod structural schematic diagram of the utility model.

[0024] In the drawing: 1, mixing cylinder;2, mixing shaft;3, mixing structure;31, stirring rod;32, follow-up sleeve;33, first order stirring sleeve;331, bushing;332, sleeve;333, stirring plate;334, overflow hole;335, lining ring;34, second order stirring sleeve;341, second order sleeve;342, second order mixing rod;343, overflow groove;344, perfusion hole;345, protruding block;346, shaft rod. Specific embodiments

[0025] The implementation of the present application will be described in detail below with the help of the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0026] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0027] Figures 1-6For an embodiment of the utility model, the specific problem of the embodiment is that: part of the prior art adopts solution gel method to prepare CoFe2O4 nanoparticles, the precursor solution is continuously heated and stirred in the stirring device, the solvent is evaporated to obtain the precursor sol, and the precursor sol is dried in air, heated in a tube furnace, and naturally cooled under N2 atmosphere after heat preservation. During the heating and stirring process of the precursor solution, the viscosity gradually increases, the conventional stirring device has poor stirring uniformity and poor stirring effect, which affects the product quality. Based on the above description, during the process of gradually changing the precursor solution into the precursor sol, the viscosity increases and generates a large resistance, and the single mixing structure for the solution can reduce the mixing efficiency and cause poor mixing effect. The embodiment describes a raw material mixing device for shielding and wave absorbing material, which utilizes a first stirring sleeve 33 arranged on the stirring rod 31 to adapt to the state of the precursor solution during gradual heating, and the first stirring sleeve 33 stirs the flow body of the precursor solution, expands the stirring area, and increases the mixing degree of the solution. When the viscosity of the precursor solution gradually increases, the area of the first stirring sleeve 33 changes the mixing speed, the position of the first stirring sleeve 33 changes, the second stirring sleeve 34 is exposed, and the second stirring sleeve 34 stirs the precursor sol to increase the stirring efficiency.

[0028] A specific raw material mixing device for shielding and wave absorbing material includes a mixing cylinder 1, an inlet and an outlet arranged on the mixing cylinder 1, a mixing shaft 2 installed in the mixing cylinder 1, a driving motor connected to the mixing shaft 2 and installed on the mixing cylinder 1 to generate torque output for the mixing shaft 2, a mixing structure 3 sleeved on the mixing shaft 2 and rotating synchronously with the mixing shaft 2, and a transmission generated by the rotation of the mixing shaft 2 to drive the mixing structure 3, which generates mixing of the precursor solution in the mixing cylinder 1.

[0029] The mixing structure 3 includes a following sleeve 32 sleeved on the mixing shaft 2, a stirring assembly arranged in a ring on the following sleeve 32, a stirring rod 31 and a first stirring sleeve 33 sleeved on the stirring rod 31 and connected by threads, a second stirring sleeve 34 sleeved on the stirring rod 31 inside the first stirring sleeve 33, the first stirring sleeve 33 being suitable for the precursor solution initially entering the mixing cylinder 1 and the precursor solution during the gradual increase of the viscosity, and the first stirring sleeve 33 changing position due to resistance when the viscosity exceeds the mixing threshold of the first stirring sleeve 33, reducing the mixing radius and exposing the second mixing cylinder to mix the precursor sol with continuously increasing viscosity.

[0030] The first stirring sleeve 33 comprises a sleeve 331 sleeved on the stirring rod 31 and a sleeve 332 connected with the sleeve 331 and extending to the end of the stirring rod 31, the inner wall of the sleeve 331 is provided with a threaded groove and has a smaller diameter than the sleeve 332, the symmetrical stirring plates 333 are mounted on the sleeve 332, the stirring plates 333 are provided with a plurality of overflow holes 334, the inner lining ring 335 with a larger diameter than the stirring rod 31 is mounted in the sleeve 332, the ring groove is provided in the sleeve 332, the inner lining ring 335 is embedded in the ring groove and connected with the sleeve 332, so that only the front and back movements of the sleeve 332 are generated, the viscosity of the precursor solution is increased before use, the inner lining ring 335 acts on the second stirring sleeve 34 to establish or release the effect of the second stirring sleeve 34 on the material, the second stirring sleeve 34 comprises the second sleeve 341 sleeved on the stirring rod 31, the outer diameter of the second sleeve 341 is smaller than the inner diameter of the inner lining ring 335, the second mixing rod 342 is annularly mounted on the second sleeve 341, the second mixing rod 342 is cylindrical and is provided with a plurality of overflow grooves 343 and the filling holes 344 for the material flow on the second mixing rod 342, the notch matching the overflow groove 343 is provided on the inner lining ring 335, the protrusion 345 is selectively mounted on the second mixing rod 342, the protrusion 345 is connected with the inner lining ring 335 through the shaft 346, the shaft 346, the inner lining ring 335 and the protrusion 345 are connected through the universal shaft, the second mixing rod 342 is rotatably connected with the second sleeve 341 through the rotating shaft, the cutting position of the overflow groove 343 is located at the connecting position of the second mixing rod 342 and the rotating shaft. During the backward movement of the sleeve 332, the protrusion 345 moves along the overflow groove 343 and is blocked on the rear side wall of the overflow groove 343, and then the shaft 346 drags the protrusion 345, so that the second mixing rod 342 rotates around the rotating shaft and changes the angle with the stirring rod 31.

[0031] The stirring plate 333 is cross-shaped, the end of the horizontal structure away from the sleeve 332 is chamfered, the cutting end is obliquely mounted on the top surface of the vertical structure, the cutting end is triangular and inclined away from the sleeve 332, so as to cut the precursor solution or the precursor sol and reduce the resistance. The extension length of the stirring plate 333 in the front and back directions is equivalent to the length of the sleeve 332, and the length of the horizontal structure of the stirring plate 333 is equivalent to the length of the vertical structure. The contact area of the precursor solution with gradually increasing viscosity is gradually reduced, so as to reduce the mixing radius and improve the mixing efficiency of the whole scheme.

[0032] The control mode of the utility model is automatic control through the controller, the control circuit of the controller can be realized through simple programming of the technical personnel in the field, the provision of the power supply also belongs to the common knowledge in the field, and the utility model is mainly used for protecting the mechanical device, so the utility model will not explain the control mode and the circuit connection in detail.

[0033] It should be noted that in this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing device for shielding wave-absorbing material, comprising a mixing cylinder (1) and a feeding port and a discharging port formed on the mixing cylinder (1), characterized in that: The mixing barrel (1) is internally provided with a mixing shaft (2), and a plurality of mixing structures (3) are sleeved on the mixing shaft (2) and rotate synchronously with the mixing shaft (2); The mixing structure (3) comprises a following sleeve (32) sleeved on the mixing shaft (2), an agitating assembly is annularly arranged on the following sleeve (32), the agitating assembly is provided with an agitating rod (31), a first-order agitating sleeve (33) sleeved on the agitating rod (31) and threadedly connected, and a second-order agitating sleeve (34) is sleeved on the agitating rod (31) in the first-order agitating sleeve (33); The first-order agitating sleeve (33) comprises a bushing (331) sleeved on the agitating rod (31) and a sleeve (332) extending to the end of the agitating rod (31) and connected with the bushing (331), a plurality of agitating plates (333) are symmetrically arranged on the sleeve (332), and a plurality of overflow holes (334) are formed in the agitating plates (333). 2.The raw material mixing device for a shielding and wave-absorbing material according to claim 1, characterized in that: An inner lining ring (335) with a diameter larger than that of the agitating rod (31) is arranged in the sleeve (332), and the inner lining ring (335) acts on the second-order agitating sleeve (34) to establish or release the action of the second-order agitating sleeve (34) on the material; The second-order agitating sleeve (34) comprises a second-order sleeve (341) sleeved on the agitating rod (31), the outer diameter of the second-order sleeve (341) is smaller than the inner diameter of the inner lining ring (335), a second-order mixing rod (342) is annularly arranged on the second-order sleeve (341), the second-order mixing rod (342) is in a cylindrical shape and is provided with a plurality of overflow grooves (343) and a plurality of perfusion holes (344) for material perfusion and communicating with the overflow grooves (343). 3.The raw material mixing device for a shielding and wave-absorbing material according to claim 2, characterized in that: A notch matched with the overflow groove (343) is formed in the inner lining ring (335), a protrusion (345) is selectively arranged on the second-order mixing rod (342) and connected with the inner lining ring (335) through a shaft rod (346); The second-order mixing rod (342) is rotatably connected with the second-order sleeve (341) through a rotating shaft, and the cut-off position of the overflow groove (343) is located at the position where the second-order mixing rod (342) is connected with the rotating shaft.

4. The raw material mixing device for a shielding and wave-absorbing material according to claim 1, characterized in that: The agitating plate (333) is in a cross shape, a chamfer is formed at the end of the structure body in the horizontal direction and away from the sleeve (332), and a cutting end is obliquely arranged on the top surface of the structure body in the vertical direction, the cutting end is in a triangular shape and is obliquely arranged away from the sleeve (332).

5. The raw material mixing device for a shielding and wave-absorbing material according to claim 4, characterized in that: The extension length of the agitating plate (333) in the front-rear direction is equivalent to the length of the sleeve (332), and the length of the structure body in the horizontal direction is equivalent to the length of the structure body in the vertical direction. 6.The raw material mixing device for a shielding and wave-absorbing material according to claim 1, characterized in that: A threaded groove is formed in the inner wall of the bushing (331) and has a diameter smaller than that of the sleeve (332).

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